Video: Vim li cas peb tawg hydrocarbons?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog vim li cas tawg
Cracking yog tseem ceeb rau ob qho laj thawj tseem ceeb: Nws pab kom phim cov khoom ntawm cov feem ntau nrog qhov kev thov rau lawv. Nws tsim alkenes, uas yog pab tau raws li feedstock rau petrochemical kev lag luam
Hauv qhov no, lub hom phiaj ntawm kev tawg yog dab tsi?
Kev tawg , nyob rau hauv roj av refining, cov txheej txheem los ntawm hnyav hydrocarbon molecules yog tawg mus rau hauv lub sib zog molecules los ntawm lub tshav kub thiab feem ntau yog siab thiab tej zaum catalysts. Kev tawg yog cov txheej txheem tseem ceeb tshaj plaws rau kev lag luam tsim cov roj av thiab cov roj diesel.
Tom qab ntawd, lo lus nug yog, ob hom kev tawg yog dab tsi? Hom Cracking - Cua sov Kev tawg thiab Catalytic Kev tawg . Kev tawg yog ib tug txheej txheem uas complex high molecular hnyav cov organic tebchaw yog tawg mus rau hauv me me fragments ntawm molecules. Lub complex siab molecular hnyav organic tebchaw yog feem ntau ntev chained hydrocarbons xws li roj av.
Tsis tas li ntawd, vim li cas peb rhuav tshem cov saw ntev hydrocarbons?
Cracking pub loj hydrocarbon molecules ua tawg mus rau hauv me me, ntau pab tau hydrocarbon molecules. Cracking ua ib qho kev sib xyaw me me alkanes thiab alkenes. Qhov no pab ua kom tau raws li qhov xav tau ntawm cov khoom siv feem ntau thiab kom tau txais txiaj ntsig.
Yuav ua li cas alkanes tawg?
Kev tawg yog ib qho tshuaj tiv thaiv uas loj saturated hydrocarbon molecules tau tawg mus rau hauv me me, muaj txiaj ntsig zoo hydrocarbon molecules, qee qhov tsis txaus ntseeg: thawj qhov pib hydrocarbons yog alkanes . cov khoom ntawm tawg suav nrog alkanes thiab alkenes, cov tswv cuab ntawm ntau homologous series.
Pom zoo:
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Vim li cas hydrocarbons insoluble hauv dej?
Hydrocarbons yog non-polar yooj yim covalent molecule nrog ib tug yooj yim molecular qauv. Ib qho cuab yeej ntawm kev ua ib qho tsis muaj polar molecule yog tias nws tsis soluble hauv dej vim nws yog hydrophobic, tab sis nws yog soluble hauv cov organic hnyav. Txawm li cas los xij, Alkane (Hydrocarbon) muaj C-H daim ntawv cog lus tsis yog-Polar
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
Vim li cas peb thiaj siv cov kev ntsuas ntawm kev tawg?
Kev ntsuas ntawm kev tawg yog qhov tseem ceeb vim tias lawv tuaj yeem qhia koj hauv ib qho qauv tshwj xeeb, lossis pab pawg neeg. Thaum nws los txog rau cov qauv, qhov kev faib tawm yog qhov tseem ceeb vim tias nws txiav txim siab cov npoo ntawm qhov yuam kev koj yuav muaj thaum txiav txim siab txog kev ntsuas ntawm lub hauv paus nyiam, zoo li qhov nruab nrab
Yuav ua li cas tawg ntawm hydrocarbons nqa?
Nyob rau hauv petrochemistry, roj av geology thiab organic chemistry, tawg yog cov txheej txheem uas nyuaj organic molecules xws li kerogens los yog ntev-chain hydrocarbons tau tawg mus rau hauv yooj yim molecules xws li lub teeb hydrocarbons, los ntawm kev tawg ntawm carbon-carbon bonds nyob rau hauv lub precursors